Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049441 | High density polyethylene compositions | Jay P. Porter, William D. Ray | 1991-09-17 |
| 4911985 | High density polyethylene compositions containing polyisobutylene rubber and filler | Jay P. Porter, William D. Ray | 1990-03-27 |